*The limeade syrup used to be sold under the Sun-Glo name. It might be available at restaurant supply stores or warehouse stores. This is what gives the greenie the distinctive color and flavor of Lime Popsicles.

Note that when observing the bartenders in action on a busy evening, the process seems to be:
1.) scoop ice into clear plastic 12ox cups from ice well
2.) eyeball guess at shot of vodka
3.) splash limeade syrup in cups
4.) wave collins mix package over cups to give light dusting
5.) fill with sour mix from the gun
6.) give one or two stirs with plastic stirrer